What is CVE-2026-4537?

CVE-2026-4537 is a medium-severity vulnerability in Cudy Tr1200, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-03-22.

How severe is CVE-2026-4537?

Medium severity. CVSS v3 base score is 4.7 out of 10.

RCE in Cudy Tr1200

CVE-2026-4537

A vulnerability was determined in Cudy TR1200 R46-2.4.15-20250721-164017. Impacted is the function action_ipsec_conn of the file /usr/bin/lib/lua/luci/controller/ipsec.lua. Executing a manipulation can lead to command injection. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading the affected component is advised. The vendor explains, that "some other customer has reported this to us before. And we have fixed this."

EPSS: 0.103 (95.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.

Affected products

Cudy Tr1200 — versions R46-2.4.15-20250721-164017

Weakness classification (CWE)

References

cna@vuldb.com (technical-description, vdb-entry)
cna@vuldb.com (signature, permissions-required)
cna@vuldb.com (third-party-advisory)
cna@vuldb.com (exploit)

Frequently asked questions

What is CVE-2026-4537?: CVE-2026-4537 is a medium-severity vulnerability in Cudy Tr1200, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-03-22.
How severe is CVE-2026-4537?: Medium severity. CVSS v3 base score is 4.7 out of 10.